5 files changed, 33 insertions, 38 deletions

diff --git a/drivers/platform/x86/amd/pmf/Kconfig b/drivers/platform/x86/amd/pmf/Kconfig
index f4fa8bd8bda8..99d67cdbd91e 100644
--- a/drivers/platform/x86/amd/pmf/Kconfig
+++ b/drivers/platform/x86/amd/pmf/Kconfig
@@ -11,6 +11,7 @@ config AMD_PMF
 	select ACPI_PLATFORM_PROFILE
 	depends on TEE && AMDTEE
 	depends on AMD_SFH_HID
+	depends on HAS_IOMEM
 	help
 	  This driver provides support for the AMD Platform Management Framework.
 	  The goal is to enhance end user experience by making AMD PCs smarter,
diff --git a/drivers/platform/x86/amd/pmf/acpi.c b/drivers/platform/x86/amd/pmf/acpi.c
index d5b496433d69..1b9c7acf0ddf 100644
--- a/drivers/platform/x86/amd/pmf/acpi.c
+++ b/drivers/platform/x86/amd/pmf/acpi.c
@@ -433,37 +433,29 @@ int apmf_install_handler(struct amd_pmf_dev *pmf_dev)
 	return 0;
 }
 
-static acpi_status apmf_walk_resources(struct acpi_resource *res, void *data)
+int apmf_check_smart_pc(struct amd_pmf_dev *pmf_dev)
 {
-	struct amd_pmf_dev *dev = data;
+	struct platform_device *pdev = to_platform_device(pmf_dev->dev);
 
-	switch (res->type) {
-	case ACPI_RESOURCE_TYPE_ADDRESS64:
-		dev->policy_addr = res->data.address64.address.minimum;
-		dev->policy_sz = res->data.address64.address.address_length;
-		break;
-	case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
-		dev->policy_addr = res->data.fixed_memory32.address;
-		dev->policy_sz = res->data.fixed_memory32.address_length;
-		break;
-	}
-
-	if (!dev->policy_addr || dev->policy_sz > POLICY_BUF_MAX_SZ || dev->policy_sz == 0) {
-		pr_err("Incorrect Policy params, possibly a SBIOS bug\n");
-		return AE_ERROR;
+	pmf_dev->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!pmf_dev->res) {
+		dev_dbg(pmf_dev->dev, "Failed to get I/O memory resource\n");
+		return -EINVAL;
 	}
 
-	return AE_OK;
-}
-
-int apmf_check_smart_pc(struct amd_pmf_dev *pmf_dev)
-{
-	acpi_handle ahandle = ACPI_HANDLE(pmf_dev->dev);
-	acpi_status status;
-
-	status = acpi_walk_resources(ahandle, METHOD_NAME__CRS, apmf_walk_resources, pmf_dev);
-	if (ACPI_FAILURE(status)) {
-		dev_dbg(pmf_dev->dev, "acpi_walk_resources failed :%d\n", status);
+	pmf_dev->policy_addr = pmf_dev->res->start;
+	/*
+	 * We cannot use resource_size() here because it adds an extra byte to round off the size.
+	 * In the case of PMF ResourceTemplate(), this rounding is already handled within the _CRS.
+	 * Using resource_size() would increase the resource size by 1, causing a mismatch with the
+	 * length field and leading to issues. Therefore, simply use end-start of the ACPI resource
+	 * to obtain the actual length.
+	 */
+	pmf_dev->policy_sz = pmf_dev->res->end - pmf_dev->res->start;
+
+	if (!pmf_dev->policy_addr || pmf_dev->policy_sz > POLICY_BUF_MAX_SZ ||
+	    pmf_dev->policy_sz == 0) {
+		dev_err(pmf_dev->dev, "Incorrect policy params, possibly a SBIOS bug\n");
 		return -EINVAL;
 	}
 
diff --git a/drivers/platform/x86/amd/pmf/core.c b/drivers/platform/x86/amd/pmf/core.c
index 347bb43a5f2b..06a97c533cb8 100644
--- a/drivers/platform/x86/amd/pmf/core.c
+++ b/drivers/platform/x86/amd/pmf/core.c
@@ -430,18 +430,18 @@ static int amd_pmf_probe(struct platform_device *pdev)
 
 	err = amd_smn_read(0, AMD_PMF_BASE_ADDR_LO, &val);
 	if (err) {
-		dev_err(dev->dev, "error in reading from 0x%x\n", AMD_PMF_BASE_ADDR_LO);
 		pci_dev_put(rdev);
-		return pcibios_err_to_errno(err);
+		return dev_err_probe(dev->dev, pcibios_err_to_errno(err),
+				     "error in reading from 0x%x\n", AMD_PMF_BASE_ADDR_LO);
 	}
 
 	base_addr_lo = val & AMD_PMF_BASE_ADDR_HI_MASK;
 
 	err = amd_smn_read(0, AMD_PMF_BASE_ADDR_HI, &val);
 	if (err) {
-		dev_err(dev->dev, "error in reading from 0x%x\n", AMD_PMF_BASE_ADDR_HI);
 		pci_dev_put(rdev);
-		return pcibios_err_to_errno(err);
+		return dev_err_probe(dev->dev, pcibios_err_to_errno(err),
+				     "error in reading from 0x%x\n", AMD_PMF_BASE_ADDR_HI);
 	}
 
 	base_addr_hi = val & AMD_PMF_BASE_ADDR_LO_MASK;
@@ -497,7 +497,7 @@ static struct platform_driver amd_pmf_driver = {
 		.pm = pm_sleep_ptr(&amd_pmf_pm),
 	},
 	.probe = amd_pmf_probe,
-	.remove_new = amd_pmf_remove,
+	.remove = amd_pmf_remove,
 };
 module_platform_driver(amd_pmf_driver);
 
diff --git a/drivers/platform/x86/amd/pmf/pmf.h b/drivers/platform/x86/amd/pmf/pmf.h
index 8ce8816da9c1..a79808fda1d8 100644
--- a/drivers/platform/x86/amd/pmf/pmf.h
+++ b/drivers/platform/x86/amd/pmf/pmf.h
@@ -13,6 +13,7 @@
 
 #include <linux/acpi.h>
 #include <linux/input.h>
+#include <linux/platform_device.h>
 #include <linux/platform_profile.h>
 
 #define POLICY_BUF_MAX_SZ		0x4b000
@@ -355,19 +356,20 @@ struct amd_pmf_dev {
 	/* Smart PC solution builder */
 	struct dentry *esbin;
 	unsigned char *policy_buf;
-	u32 policy_sz;
+	resource_size_t policy_sz;
 	struct tee_context *tee_ctx;
 	struct tee_shm *fw_shm_pool;
 	u32 session_id;
 	void *shbuf;
 	struct delayed_work pb_work;
 	struct pmf_action_table *prev_data;
-	u64 policy_addr;
+	resource_size_t policy_addr;
 	void __iomem *policy_base;
 	bool smart_pc_enabled;
 	u16 pmf_if_version;
 	struct input_dev *pmf_idev;
 	size_t mtable_size;
+	struct resource *res;
 };
 
 struct apmf_sps_prop_granular_v2 {
diff --git a/drivers/platform/x86/amd/pmf/tee-if.c b/drivers/platform/x86/amd/pmf/tee-if.c
index 19c27b6e4666..8c88769ea1d8 100644
--- a/drivers/platform/x86/amd/pmf/tee-if.c
+++ b/drivers/platform/x86/amd/pmf/tee-if.c
@@ -257,7 +257,7 @@ static int amd_pmf_invoke_cmd_init(struct amd_pmf_dev *dev)
 		return -ENODEV;
 	}
 
-	dev_dbg(dev->dev, "Policy Binary size: %u bytes\n", dev->policy_sz);
+	dev_dbg(dev->dev, "Policy Binary size: %llu bytes\n", (unsigned long long)dev->policy_sz);
 	memset(dev->shbuf, 0, dev->policy_sz);
 	ta_sm = dev->shbuf;
 	in = &ta_sm->pmf_input.init_table;
@@ -512,9 +512,9 @@ int amd_pmf_init_smart_pc(struct amd_pmf_dev *dev)
 	if (ret)
 		goto error;
 
-	dev->policy_base = devm_ioremap(dev->dev, dev->policy_addr, dev->policy_sz);
-	if (!dev->policy_base) {
-		ret = -ENOMEM;
+	dev->policy_base = devm_ioremap_resource(dev->dev, dev->res);
+	if (IS_ERR(dev->policy_base)) {
+		ret = PTR_ERR(dev->policy_base);
 		goto error;
 	}